20011310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1669}}^1$

素因数の和:1796

約数の個数: 32

約数和(自身を含む): 39679200

約数和(自身を除く): 19667890

約数列:

[1, 2, 5, 10, 11, 22, 55, 109, 110, 218, 545, 1090, 1199, 1669, 2398, 3338, 5995, 8345, 11990, 16690, 18359, 36718, 91795, 181921, 183590, 363842, 909605, 1819210, 2001131, 4002262, 10005655, 20011310]

約数ペア:

[(1, 20011310), (2, 10005655), (5, 4002262), (10, 2001131), (11, 1819210), (22, 909605), (55, 363842), (109, 183590), (110, 181921), (218, 91795), (545, 36718), (1090, 18359), (1199, 16690), (1669, 11990), (2398, 8345), (3338, 5995)]